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  • Verified reviews icon34
    Verified drywall insulation services reviews

Top-Rated Drywall insulation pros in Saint Helena - Updated Nov 2026

Avatar for Ace Insulation, Inc.
Ace Insulation, Inc.
3.5(
30
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Saint Helena, CA and surrounding areas

Approved

In business since 2011

Free estimates

Credit card accepted

"I needed to fix ceiling insulation after a major leak into the living room. The insulation was pulled up to allow things to dry out, but the company that did the drying (Stanley Steamer) said they would not put the insulation back. I called Ace because of all the great reviews on yelp. The bid was $650. I accepted it, and an excellent workman arrived on time as arranged. Here is the rub: The workman was finshed in 1/2 hr (!!!!!), and my jaw dropped. I thought for the price must be going to take at least a few hours. I had agreed to the price, though, so I wrote the check, as well as an email to the estimator for the job explaining how distressed I was by this. The email was passed to the manager of the Sacramento office, who called me right away. He said he would have felt the same, and that he would tear up the check and give me a new price. We met the next week, and he charged me half of the original bid. He gave me my original check and took my new check for $325. Here is what you should know about the price: The invoice had two *Service* items: a *show up fee* of $250, and another called *Work performed as per quote. This was followed by a *Quote adjustment based on actual work* of -$325. I truly appreciate the businesslike approach to the work: On time, done right as best I can tell. I also appreciate the response to my distress over the clear miscalculation. In spite of this, I feel overcharged even at half the original quote. The *show up fee* should have covered everything, so the maximum bill should have been $250. There was extremely little work performed, even if it was done well and professionally. In retrospect, I have no idea what the estimator included in $400 for *Work performed as per quote.* What did Ace do wrong? The estimator should have seen there was less than an hours work involved and told me that the minimum charge would be $250 to show up. If there were other minimum charges, such as a minimum of an hour of work, those should have been explained by the estimator so that I had some basis for understanding the bid and the opportunity to decide that the price was possibly going to be too high. The estimator said nothing about this, and there was no detail in the estimate. I believe I have given a fair revue for this disappointing experience. Ace has excellent customer service, and as best I can tell, the work was performed well. The pricing at first was way out of line, and ultimately still seems to me to be too high. But the job is done, and I am sure if there is any reason to, Ace will stand behind their work."
Response time2 days
59 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for C E L Insulation
C E L Insulation
4.0(
25
)
Injection Insulation - Install

Serving Saint Helena, CA and surrounding areas

In business since 2011

Free estimates

Offers commercial services

"Great company with great customer service. They were really professional and personable with everyone. I did a bit of research and got some additional estimates. Still very, very happy with their work. They were respectful of my property while doing the work. I most definitely will continue to hire and I highly recommend."
Response time2 days
Response rate86%
Recommended by80%of homeowners
Avatar for Landmark Energy Upgrades
Landmark Energy Upgrades
4.8(
59
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

Serving Saint Helena, CA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"Last week I had Landmark energy upgrades, do energy efficiency work at my home. The work included sealing all my duct-work in the attic as well as sealing all the spots between the living space below and blowing in additional insulation in order to bring me up to today's standards. I also had them replace all the duct work in my crawlspace and seal it as well as when they came for their initial inspection they found that my duct-work was riddled with holes and was completely uninsulated as well as being unsealed. I initially contacted Landmark after receiving notification that they were offering assorted rebates for home owners to incentivize them to do upgrades to there homes.
I was super pleased with these guys, a total of two crews worked on our home and they were both quick, professional, and explained what they would be doing in detail when they first arrived. They also did a good job cleaning up after themselves. Immediately I noticed a difference in my home after the work was finished. The HVAC system weren?t running nearly as much and the temperature in the home was absolutely more consistent.  Landmark Energy Upgrades promptly handled all the paperwork required in order for me to receive my rebates making this part of the process extremely easy. I fully recommend these guys!
"
Cool Roof Install
Energy Upgrade
HVAC Air Duct
Home Energy Audit
Energy Upgrade Contractors

+6

Recommended by98%of homeowners
Empire Insulation Contractors
3.8(
18
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Saint Helena, CA and surrounding areas

In business since 2003

Free estimates

"Craig, good natured guy whose rig was wide and access to the property was difficult. After looking at numerous solutions, he had to back out blind and didn't hurt a twig doing it. Arrived on time, job took exactly time estimated, and appears to have topped off the job with few more inches than required. Best price as well. I was impressed. Definitely call again on other work and recommend to friends and clients."
Recommended by100%of homeowners
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Drywall Insulation FAQs, answered by experts

The cost to skim coat drywall is $1.15 to $1.35 per square foot. Most of the cost is labor, for the necessary skills to apply the skim coat with precision using high-quality tools. This is a job better left to the professionals for the best outcomes.

You should always hang drywall from the top down. Starting at the top makes it easier to create a straight, tight line between the ceiling and the wall. Any gaps that occur will be at the bottom, where they are easier to manage. You can either cut the bottom piece of drywall to fit the remaining space or cover the gap with baseboard trim. Additionally, starting at the top is physically easier, as you won't have to fit the top sheet into a tight space between the lower sheet and the ceiling, or try to balance the upper sheets on the lower ones while securing them.

If you’re installing new drywall, you may need to skim coat the drywall first for a smooth finish and to allow the primer to adhere to the wall. It’s only necessary if there are imperfections in your drywall due to issues with the studs or improper drywall installation. If you’re refreshing existing walls, you may want to skim coat if there are imperfections across the wall. As an alternative, you can repair your drywall and sand it for a smooth finish before painting.

There are several benefits to wet-sanding drywall, but the main perk is that it produces far less dust than dry-sanding. As a result, wet-sanding poses fewer health risks and makes less of a mess in your home. Plus, damp sponges are less abrasive than sandpaper, so there’s a smaller chance of scratching or damaging the drywall paper. Wet-sanding also creates a smoother finish than dry-sanding.

Yes, you can apply new plaster over an existing plaster surface, such as a wall or ceiling, provided the old plaster is in good condition. Before you begin, check the stability of the existing plaster. The surface must be clean, free of loose material, and have no peeling paint. It is also recommended to roughen the surface slightly to promote adhesion. For older plaster, applying a base coat like a PVA emulsion or a specific bonding agent or primer is crucial. This step makes the existing plaster less porous and ensures the new and old layers adhere properly for a smooth, long-lasting finish.

The Saint Helena, CA homeowners’ guide to drywall insulation services

From average costs to expert advice, get all the answers you need to get your job done.